

A118295


Start with 20 and repeatedly reverse the digits and add 1 to get the next term.


0



20, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

After 1 step enters a cycle of length 9.


LINKS



EXAMPLE

After a(9) = 10 we get a(10) = (reversed digits of a(9)) + 1 = 01 + 1 = 2.  David A. Corneth, Jan 08 2024


MATHEMATICA

PadRight[{20}, 100, Range[2, 10]] (* Paolo Xausa, Jan 08 2024 *)


PROG

(PARI) a(n) = if(n == 1, return(20)); return(((n1)%9) + 2) \\ David A. Corneth, Jan 08 2024


CROSSREFS



KEYWORD

nonn,easy,base


AUTHOR

Luc Stevens (lms022(AT)yahoo.com), May 14 2006


STATUS

approved



